Soluții - profil uman
9th Grade
•20 Qs
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Soluții - profil uman
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Cornelia Tudor
Used 15+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fenomenul fizic prin care particulele de dizolvat se răspândesc printre particulele de dizolvant se numește:
distilare
topire
fierbere
dizolvare
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soluția este un amestec omogen de 2 sau sau multe substanțe.
Adevărat
Fals
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
La desprinderea ionilor din cristalul de Na+Cl- , molecula de apă se orientează cu:
partea negativă spre ionul de sodiu
partea pozitivă spre ionul de sodiu
partea negativă spre ionul clorură
partea pozitivă spre ionul clorură
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Serul fiziologic utilizat în medicină este o soluție de:
fluorură de sodiu în apă
glucoză în apă
clorură de sodiu în apă
sare în apă
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Soluția folosită pentru protejarea viței-de-vie împotriva manei conține
oțet
sulfat de cupru
sare
iod
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Soluția folosită în acumulatorii auto conține:
acid sulfhidric
sulfat de cupru
acid sulfuric
acid acetic
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
În alimentație, se utilizează soluția numită oțet care conține
acid acetic
acid citric
alcool
glucoză
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